From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Korsgaard Date: Thu, 06 Jun 2019 17:03:23 +0200 Subject: [Buildroot] [PATCH 1/3] package/intel-microcode: install into images for early loading support In-Reply-To: <20190520221712.22564-1-peter@korsgaard.com> (Peter Korsgaard's message of "Tue, 21 May 2019 00:17:10 +0200") References: <20190520221712.22564-1-peter@korsgaard.com> Message-ID: <87blzalps4.fsf@dell.be.48ers.dk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net >>>>> "Peter" == Peter Korsgaard writes: > Microcode based security mitigation (E.G. MDS) requires that the microcode > gets loaded very early. This can be handled by one of: > - Concatenating (a subset of) the intel-microcode files and write to > kernel/x86/microcode/GenuineIntel.bin in the initrd. Requires that the > (first) initrd is external from the kernel and NOT compressed. > - Build (a subset of) the intel-microcode files into the kernel using the > CONFIG_EXTRA_FIRMWARE option. > Install the microcode files into images to support these use cases (E.G. > through a post-build script for the initrd, or by pointing > CONFIG_EXTRA_FIRMWARE_DIR to ${BR_BINARIES_DIR}, similar to how we include > the .cpio image inside the kernel). > Signed-off-by: Peter Korsgaard Committed to 2019.02.x, thanks. -- Bye, Peter Korsgaard